Gassendi, Pierre, De proportione qua gravia decidentia accelerantur, 1646

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            <p type="main">
              <s id="s.000543">
                <pb pagenum="42" xlink:href="028/01/082.jpg"/>
                <emph type="italics"/>
              ſimè determinet.
                <emph.end type="italics"/>
              </s>
              <s id="s.000544"> Pergis declarando ecqua illa ſie
                <lb/>
                <emph type="italics"/>
              Aio igitur, ita eſſe à natura conſtitutum, vt globus quilibet,
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              tuiuſcumque materiæ, ex vnius diametri altitudine cadens,
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              duplum ſui ponderis, hoc eſt, præter pondus quod ſine im­
                <lb/>
              petu in æquilibrio retineret, aliud ſibi æquale attollat; &
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              ex altitudine duarum diametrorum, triplum; ex tribus dia­
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              metris, quadruplum; & ita deinceps: adeo vt ex quauis
                <lb/>
              altitudine cadens, ſemper (vltra æquilibrium) toties pro­
                <lb/>
              prium pondus multiplieatum attollat, quot in tota, vnde
                <lb/>
              cadit, altitudine diametri continentur.
                <emph.end type="italics"/>
              </s>
              <s id="s.000545"> Subiicis, rem exag­
                <lb/>
              gerando,
                <emph type="italics"/>
              Mirum ſanè quòd globus, cuius figuram, vt­
                <lb/>
              pote ſimplicißimam, capacißimàmque, natura ſingulariter
                <lb/>
              amare videtur, menſuram, ac modum, tam velocitatis
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              motus in deſcenſu grauium, quàm virtutis eius motricis,
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              quæ in eadem velocitate continetur, ſuâ nobis diametro exhi­
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              beat: adeo vt ex decem, aut centum diametrorum altitudine
                <lb/>
              decidens, eum acquirat impetum, qui attollendis decem, aut
                <lb/>
              centum ſimilibus globis, in altera lance impoſitis, ſufficere
                <lb/>
              poßit, ſi materiæ conditio id patiatur.
                <emph.end type="italics"/>
              </s>
              <s id="s.000546"> Addis & quid
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              ipſe obſeruaueris.
                <emph type="italics"/>
              Expertus ſum ego,
                <emph.end type="italics"/>
              inquis,
                <emph type="italics"/>
              globum plum­
                <lb/>
              beum vnius vnciæ, ex altitudine ſex pedum, ſiue dia­
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              metrorum centum quatuordecim cadentem, vncias toti­
                <lb/>
              dem vltra æquilibrium, hoc est, libras ſeptem, &
                <lb/>
              vncias tres in altera lance impoſitas, ſuo impetu eleuaſſe,
                <lb/>
              non ſine ingenti eorum qui præſentes aderant admiratione,
                <lb/>
              ac stupore.
                <emph.end type="italics"/>
              </s>
              <s id="s.000547"> Tum & hæc habes.
                <emph type="italics"/>
              Porrò ſi id in paucis
                <lb/>
              diametris experiri placuerit, non admodùm magna opus
                <lb/>
              erit diligentia: at ſi è maiore altitudine idem tentare pla­
                <lb/>
              cuerit, tum in hac, vt in cæteris Phyſicis experientiis,
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
        </body>
      </text>
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